A ground from a printed circuit board to the frame of an electronic system is formed by a biaxially-compressible conductive spring that is captivated between the printed circuit board and a plastic stiffener to which the board is fastened. According to one aspect, for a table referenced in a query, a filter condition is generated based, at least in part, on a predicate of the query. In addition, methods of diagnosing acute pancreatitis by measurement of carboxypeptidase A levels and pancreatic cancer by measurement of total carboxypeptidase A levels are also provided. Subsequently, a second high refractive index material layer is deposited on top of the slab core region, and an etch mask layer is formed. Further, a battery life warning apparatus estimates a timing of replacing the battery and presents a level of warning to the driver. R1 and R3 represent alkyl or alkenyl, R2 and R4 represent a hydrogen atom or a monovalent organic group, AO represents oxyalkylene having a carbon number of 3 to 18, or a reaction residue of glycidol, an alkyl glycidyl ether or alkenyl glycidyl ether, EO represents oxyethylene, m and n are 1 to 100, and p is 3 to 10.